JP3094287B2 - Articulating element for piping - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to at least one flexible pipe element which is at least indirectly connected to a pipe section and at least one of which is arranged at a distance outside said pipe element. At least two support elements, each of which is at least indirectly coupled at each of its ends to a respective piping section adjacent thereto and whose opposite ends are flexibly interconnected;
Forming a flexible connection between the two support components and the pair of support components.
That includes those consisting of at least one elastic spacer, piping, and more particularly Takashi Seki coupling element pipe portion of the exhaust system of an internal combustion engine of a motor vehicle.

[0002]

2. Description of the Prior Art Such articulating elements usually allow the angular and axial movement between pipe sections and separate them from one another so that vibrations and noise do not propagate between the pipe sections. It is used between two plumbing sections that are substantially side by side. A particularly relevant application area here is the exhaust lines of internal combustion engines of motor vehicles, which are mainly referred to below.
The application field of the present invention content is not limited to this.

[0003] Usually, the pipe portions to be connected to each other are a smooth pipe and both ends thereof. However, to be precise, the connection flange also applies here. The cross section of the pipe section is usually circular and is coaxial with the corresponding, similarly circular pipe element. However, other cross-sections are also conceivable, for example an elliptical cross-section of a pipe section having a cross-section adapted to the conduit element.

[0004] The flexible conduit element is known in the art to be a single-layer or multi-layer corrugated tube, bellows, tightly wound hose or similar shape, the choice of material being determined by the current needs. In the exhaust line of a motor vehicle, like the other parts of the coupling element, unless other materials are explicitly mentioned below,
Metal is used. Here, the pipe element is particularly preferably an annular corrugated metal hose.

The connecting element at the outset has, at opposite ends of the support part, a metal wire cushion inserted between radial connecting members formed by the support part.
There, the connecting members are pressed against the metal wire cushion by the externally mounted bracket and thus against each other, whereby the whole is joined.

[0006]

The structure described above requires a relatively rigid connection of the supporting parts, so that there is relatively little separation between vibration and noise. In addition, the mobility of these coupling elements is low, in particular the danger of the mounted brackets slipping, which may lead to a loose coupling of the support parts. Finally, the known structural shapes also limit the mobility adjustment depending on the application.

[0007] It is therefore an object of the present invention to provide a high isolation effect in the propagation of vibrations and noise and at the same time a high mobility of the coupling element, including the possibility of adjusting the free space over a wide range. It is to provide a kind of coupling element. In addition, it must be possible to obtain a reliable structure that is not significantly affected by external influences.

[0008]

In order to achieve the above-mentioned object, the characteristic structure of the articulation element for a piping section according to the present invention is in the points described in claims 1 to 25 of the claims.

[0009] Specifically, as described in claim 1, Branch
The opposite ends of the holding parts are
When there is a gap, and these opposite ends have locking parts
In both cases, the spacer extends over the axial distance
Into a substantially hollow cylindrical ring surrounding the conduit element.
Engagement part formed and matched with the corresponding end of the support part
Engages with the locking portion of each corresponding end via
Part extends over and in contact with the side of the support
And a part of which holds the spacer against the support
The fixing means is mounted . The above structure
According to the configuration, the opposite ends of both support parts are connected to the pipeline element.
G in the axial direction, and the spacer
Is provided, the coupling element of the present invention is
Is slightly radial to the diameter of the conduit element
Just by extending it, you can configure the connecting element,
It is possible to save space of this by the binding element
Wear. In addition, approximately over the axially separated portion of both support parts
By deploying a cylindrical spacer, both conventional and
When inserting a spacer into the radially overlapping part of the support part
Compared to the case, the axial and circumferential direction of the pipe element
In this case, the flexibility of the spacer and the freedom of movement are increased.
It can be. Therefore, spacers
Good connection between holding parts, especially from piping to supporting parts
Better absorbs vibration and noise transmitted to the opposite end of the
can do. And provided at the end of the support component
The locking part engages with the concave part of the spacer, and
The spacer is supported by holding the spacer on the support part.
It can be stopped sufficiently and securely on
You.

According to the present invention, there is an effect that the supporting components can be connected to each other by a highly flexible component having a larger internal attenuation. The joints of the support parts have great mobility, but in other respects the elastic shore (Shor)
e) The hardness can be varied to suit the occasional needs. Furthermore, the spacer according to the invention can be mounted in a secure manner, as will be seen from other details below. The spacer according to the invention can overcome the high temperatures particularly generated in the exhaust system of a motor vehicle. This can be applied immediately to diesel vehicles because the exhaust temperature of diesel engines is basically low, but the exhaust temperature of engines currently used in gasoline vehicles is also low, and optimal for such temperatures. Since the heat resistance of recent elastic bodies is high, it can be applied to gasoline engines.
In this connection, mention is made in particular of heat-resistant silicon synthetic rubbers and silicon fluoride synthetic rubbers which have proved to be particularly suitable as spacer materials according to the invention.

An articulated element for a pipe section according to the invention.
Is a first structural type, as described in claim 2.
Use an airtight pipeline element that is in close contact with the piping.
Provide the feature of On the other hand, at least indirectly as described, in the second structure type derived from the articulated raised at the outset, supporting lifting components and structures formed units than spacers with and close pipe section at least approximately air-tight state to claim 3 It provides the feature that are to contact. This second type of construction gives the possibility given in combination with the first type of construction, that is to say that the structural unit formed from the spacers and the supporting parts has the function of maintaining the airtightness, whereby the tube The path element does not have to be airtight and takes advantage of the possibility of a low-cost design, i.e., the need for a clasp hose wrapped around a metal strip, in particular without a sealing layer. Otherwise, what has been said above with respect to the first structure type applies equally to the second structure type.

For the design according to the invention, the support element is suitably a substantially bell-shaped tubing member whose tapered neck is fitted at least indirectly into the corresponding tubing section. One or more spacers can be mounted between opposing ends of the piping member, depending on the type of construction. There, a number of discontinuous spacers can be arranged evenly distributed around the conduit element.

However, in the first type of construction, the support components are brackets of substantially bell-shaped longitudinal section extending axially parallel to the conduit elements, which brackets correspond to hollow cylindrical end rings connected thereto. It could be designed to connect to the piping section. Here, each end ring can be connected with at least two brackets distributed evenly around the conduit element. There, the connection can be formed in one piece or by welding of the parts. Furthermore, the brackets can be chosen as either rigid or elastic parts, depending on what use characteristics the coupling element of the invention requires in this position.

The opposing ends of each of the aforementioned structural shapes are:
Notches may be provided to stop the spacer sufficiently and securely. For this purpose, the opposite ends of the support part are substantially radial or have a hook-like cross-section and have a bend at the extreme end, thereby realizing a proper engagement between the support part and the spacer. . Here, with respect to other points, the spacer that-out <br/> by injection molding to the corresponding end portions of the supporting parts. As described above, a number of spacers are evenly distributed around the conduit element, and this arrangement can be used for the first construction type according to the invention.

However, in another particularly advantageous construction available for both construction types according to the invention, the spacer is a substantially hollow cylindrical ring surrounding both ends of the support part.
Each part of such a spacer may extend over and in contact with the outer surface of the support part, and these parts may be fitted with fixing means for stopping this part on the outer surface of the support part. That is, non-positive fixation is possible. Where the non-product
Polar fixing means that the spacer and the supporting component are
The positive fixing means the positive fixing means the spacer and support
A part is a fixation made between them. Here, spring washers, blind washers, fastening strips or the like are suitable as fastening means. Due to the above-described structural configuration of the annular support part, the coupling element can be made rotationally symmetrical outwardly, so that only a slight radial extension with respect to the diameter of the conduit element is required, and thus a space-saving installation.

On the other hand, in a first type of construction according to the invention, if the support component is a bracket, a pair of opposite ends of the bracket in the axial direction of the conduit element are connected by a suitable previously described method. Can be connected to each other by separate spacers mounted on opposite ends of the support components. Here, a structure is obtained which widens in the axial cross-sectional direction of the conduit element, but has the advantage that the cross-section oblique to this direction is small, and this structure is desirable depending on the specific installation state. All the aforementioned spacers can be provided with at least one recess around the circumference of the conduit element, if necessary, in its central part which is fitted between the ends of the support part. This cuts off the material, so that the spacers can compress or expand in a bellows manner more strongly than in the case of solid spacers, and the spacers have a particularly large mobility in the axial direction of the line element. Similarly, all the aforementioned spacers can be further reinforced by an inserted textile-like sheath, for example a sheath that can be made from metal wire or artificial fiber fabric. Accordingly, the elasticity of the spacer can be increased as the case may be, thereby affecting the load capacity of the spacer in a manner that favors its damping characteristics.

In particular, in order to improve the vibration damping of the coupling element according to the invention, the following structures which are substantially in the same range can be adopted. The central portion of each spacer can contact the conduit element by at least one peripheral bulge, if necessary. Another possibility in this direction is that the central part of each spacer can be contacted with the line element by at least one damping cushion around the line element as required. Where
In order to sufficiently stop the damping cushion, it can be positively fixed deep in the central portion. However, at least one of the supporting parts
At least one damping cushion filling the middle, if necessary, around the pipe element between the two pipe elements, can likewise be positively fastened to the depth of the corresponding support part. Such a damping cushion can be applied as needed in the axial extension, so that a number of surrounding damping cushions can be in the form of strips which are axially parallel and extend substantially over the length of the conduit element. . Here, the damping cushion or the central bulge can also be engaged with the radial recess of the conduit element. Finally, the conduit element is covered with a mesh or mesh wire hose, preferably made of metal, and its ends can be attached to or securely connected to the ends of the conduit elements as required.

What is common to all such constructions is that the mutual axial movement of the parts or the axial movement of the line elements inflates and causes mutual friction via damping cushions or hoses, whereby The vibration that appears with this motion is attenuated, and the motion itself is damped. In another embodiment of the invention according to the first type of construction, the support part or the spacer, or both, can have at least one penetration in its free part.
Providing a large number or a small number of evenly distributed openings which have proven to be advantageous for said parts allows sufficient ventilation of the space surrounding the pipe element, thus providing sufficient heat dissipation and consequent heat Is prevented from being localized.

In general, in each of the contexts of the invention, the end of the pipe element corresponding to the respective pipe section and the supporting element are radially interfitted and mounted on the pipe section or at the end of the pipe section. To be in close contact with the piping. There, this connection is usually made by a welding operation. That is, the connecting element of the present invention may be a previously attached part that only needs to be finally connected to only the pipe portion. Here, at least one end ring can be attached to at least one end of the conduit element in order to "cushion" the thickest end of the conduit element and thereby increase stability. . Here, at least one of the end rings may be a component of the inner protective tube extending over the required length of the conduit element and having a radial spacing from the conduit element. The protection tube serves in a known manner to smooth the flow in the line element and to protect the line element against temperature and exhaust loads. However, to further enhance this effect, it is also possible to design the inner protective tubes emerging from the two radially interdigitated end rings to be spaced from one another.

Finally, for the same reason, the end of the conduit element is fitted with the end of at least one wire mesh hose or at least one clasp hose.
And the hose can be configured to have a radial spacing over a required portion of the length of the conduit element and to the conduit element. Other features and details according to the invention emerge from the following description of an embodiment with reference to the drawings.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. As can be seen from FIG. 1, the coupling element flowing in the direction of the arrow 1 has an annular corrugated metal hose 2 with a cylindrical connection end 3 integrally formed, and the connection end 3
, Gradually increases to the final outer diameter of the metal hose 2 as usual. Connection end 3 of metal hose 2
At the same time, support parts 4, 5 having a bell-shaped cross section and having necks 6, 7 are mounted without play. There, the axially parallel outer surfaces 8, 9 of the support parts 4, 5 are radially spaced with respect to the outer contour of the metal hose 2. In this state, the metal hose 2 is free to move within the outer surfaces 8, 9 of the support parts 4, 5.

Opposing ends 10, 11 of the support parts 4, 5
Have hooks or bends 12, 13 at the extreme ends that are axially spaced from one another and are bent radially outward. The peripheral ring-shaped linear processing part 14 serves to increase the form rigidity of the outer surfaces 8, 9. Both ends of the support parts 4, 5 are connected to each other via an elastic body, for example, a spacer made of silicone synthetic rubber, which is indicated by numeral 15 as a whole. Spacer 1
Reference numeral 5 denotes an outer surface in contact with the outer surfaces 8 and 9, and the bent portions 12 and 13 are positively fixed to the correspondingly shaped depressions 16 and 17. The spacers 15 are provided at the ends 10, 11 of the support components 4, 5.
Since almost all of the spacing between them is filled, the support parts are connected to one another by the spacers in a spring-cushion manner which has a damping effect in both directions of axial movement.

A spring washer 18 is mounted on a portion of the spacer 15 that covers the outer surface so that the spacer 15 does not come off and loosen from the outer surfaces 8 and 9. Spacer 15
An annular damping cushion 20 is inserted between the central part 19 of the
Is fitted between two adjacent wave peaks of the pipeline element 2 in order to prevent axial misalignment. Damping cushion 20
Can be rubbed against the central portion 19, so that axial vibrations in the free central region of the line element 2 are particularly damped and thus damped.

As can be seen, the element shown in FIG. 1 for connecting the two ends of the line, not shown, with the connecting end 3 mounted, for example, by pressing, has, on the one hand, both ends of the line. They can be in intimate contact with one another, but on the other hand they can allow mutual axial and lateral movement of the two ends of the line, and at the same time separate the two ends of the line from one another in terms of vibration and noise damping. This depends mainly on the well-known shape of the conduit element as an annular corrugated hose, but on the other hand, the connecting ends 3 of the conduit element and both ends of the subsequent piping part are supported by support parts 4, 5 and elastic spacers 15. It depends on the fact that it is attenuated via the formed support elements and is connected to one another in a resilient manner, but still in good support. The material of the damping cushion 20 can be a metal, ceramic, or woven or mesh made of graph fiber.

An end ring 21 is mounted on the connection end 3 upstream of the line element, in order to protect the line element 2 in particular from the temperature of the flowing medium and to smooth the medium flow. A coaxial inner protective tube 22 starts from this end ring 21 and extends over the required length of the conduit element 2,
And it has a space in the radial direction with respect to it. As can be seen, the central portion 19 of the spacer 15 also has a peripheral recess 23 and two other small recesses 24 in the radial depth. These indentations reduce the rigidity of the central part to axial movement, i.e.
It is used to make the spring path larger and make the central part more resilient. That is, the spring characteristics of the spacer can be adjusted by selecting the material,
The spring characteristics of the spacer 15 can be adjusted according to individual cases by appropriate shapes of 3, 24.

Finally, in a manner not shown, the spacers 15 can be reinforced by inserting inserted metal wires or artificial fiber fabrics in order to increase the load bearing capacity. This also applies to the spacer described below. Therefore, it is not mentioned there.

The coupling element described with reference to FIG. 1 has a metal hose 2 in the form of an airtight corrugated hose as an internal conduit element, whereby an example of a first construction type according to the invention is presented. Since the corrugated hose 2 is wound without a seal insert instead of the corrugated hose 2, it is also conceivable to use a non-hermetic clasp hose, the second type of construction according to the invention being readily apparent from FIG. But,
Also, the structural unit formed from the supporting parts 4, 5 and the spacer 15 needs to be airtight as in the embodiment of FIG. 1 and also in the case of the example of FIG. 5 described below. .

The structure of the connecting element shown in FIG.
It almost matches the shape described with reference to FIG. 1, but is modified in the following points. Spacer 25 has a central portion 26
In addition, there are penetrating parts 27 which are evenly distributed around the periphery, these penetrating parts
Ventilate the space between them and help to avoid heat formation in this space. Moreover, a surrounding damping cushion 28 is arranged in one of the support components 4,5, here the support component 4,
The axial displacement is prevented by the ring-shaped linear processing portion 14 described above with reference to FIG. 1, and here, the pipe element 2 moves while rubbing against the damping cushion 28. Finally, the inner protective tube is manufactured as a mesh hose 29, for example, from wire mesh, the radial extension of which is fitted into the connection end 3 located upstream of the line element 2.

FIG. 3 shows the contents of the supporting parts 30, 3 here.
1 is again a conduit element 2 in the manner described above with reference to FIG.
1 differs from that of FIG. 1 in that it has through-holes 32 that are evenly distributed around the circumference to help ventilate the external space. In addition, the wire cushion 33 is disposed in the central portion 34 of the spacer 35, fitting into a groove 36 of suitable shape. Finally, two end rings 3 fitted in connection ends 3 located upstream of the line element 2
Two internal protective tubes 37, 38 starting from 9, 40 are provided, and the internal protective tubes 37, 38 are
Are radially spaced from each other. Due to the double inner protective tube, the line element 2 is still well separated from the thermal load generated by the penetrating medium.

The structure shown in FIG.
Has a bulge 43 therein, which bulge contacts the outside of the conduit element 2,
1 in that the axial movement of the outer edge of the conduit element 2 in the form of an annular corrugated metal hose is directly damped and damped by the friction at the bulge 43. Furthermore, in the configuration according to FIG. 4, an end ring 44 is also arranged at the connection end downstream of the line element 2, so that the configuration according to FIG. A method in which the junction with the road section is a blunt angle, for example,
Suitable for welding.

The configuration shown in FIG. 5 is such that the bent portions 47, 48 extend radially inward from the opposite ends of the support components 45, 46, and accordingly, the spacer 49 is externally connected to the support component. Instead, it includes a deformed structure characterized by being mounted on the support components 45 and 46 from the inside. Accordingly, the elastic spring ring 50 is also internally mounted on the portion of the spacer 49 that extends over the outer surfaces 51, 52 of the support components 45, 46. Center part 53 of spacer 49
Is again a surrounding recess 5 of the type described with reference to FIG.
4 and a penetration 55 of the type described with reference to FIG.
Furthermore, there are two bulges 56, 57 which reach the outside of the conduit element 2 in the manner described with reference to FIG.

FIG. 6 shows another structural form of the coupling element addressed here. Here, too, the conduit element 2 has the same structural shape as described above. But here,
End rings 60, 61 are mounted on the connection end 3 and are connected to the bracket-shaped support parts 62, 63 having a bell-shaped cross section by, for example, welding. Supporting parts 62, 6
The opposite end portions 3 and the bent portions 64 and 65 facing radially outward from the opposite end portions support an elastic annular spacer 66. There, the spacer 66 is used for the metal reinforcing component 6.
7 and a recess 68 for adjusting the spring characteristics, the details of which are apparent from the drawing.

FIG. 7 shows that hooks 71 and 72 are supported at the ends where the brackets 69 and 70 are opposed to each other.
FIG. 72 shows a modification of the content of FIG. 6 having the feature that the above-described spacer 73 surrounding the periphery of the conduit element 2 is injection-molded. This results in a particularly stable connection between the brackets 69, 70 and the spacer 73. This connection method for injection molding of the spacers is basically also possible with the configuration described with reference to FIGS. Finally, FIG.
Indicates that the brackets 69, 70 can be joined with end rings 74, 75 as an integral part.

Incidentally, in order to facilitate comparison with the drawings, reference numerals are written in the column of claims, but the present invention is not limited to this.

[Brief description of the drawings]

FIG. 1 is a partial cutaway view of a first embodiment of an articulation element for a pipe section according to the present invention.

FIG. 2 is a partial cutaway view showing another embodiment.

FIG. 3 is a partial cutaway view showing another embodiment.

FIG. 4 is a partial cutaway view showing another embodiment.

FIG. 5 is a partial cutaway view showing another embodiment.

FIG. 6 is a partially cutaway view of a second embodiment of an articulation element for a pipe section according to the present invention.

FIG. 7 is a partial cutaway view showing another embodiment.

[Explanation of symbols]

4, 5, 30, 31, 45, 46, 62, 63, 69,
70 Supporting parts 15, 25, 35, 42, 49, 66, 73 Spacer

──────────────────────────────────────────────────の Continuing from the front page (73) Patentee 597051023 OESTLICHE KARL-FRI EDRICH-STRASSE 134, D-75175 PFORZHEIM, BUNDESREPUBLIK DEU TSCHLANDD (72) Inventor Carlo Burghardt, Germany Federal Republic of Germany De-75331 Grünbracht C 42 (72) Inventor Fabian Elsesser DE-75334 Strubenhard Nagortstraße 11 (56) References JP-A-8-303667 (JP, A) JP-A-59-46314 (JP, A) JP-A-8-303240 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16L 27/12

Claims (25)

(57) [Claims] In 1. A flexible, and at least one support element and at least one conduit element and at least indirectly contact, arranged by taking this and spacing to said pipe elements outside the pipe portion A support component having at least one of its ends coupled at least indirectly to the adjacent tubing portion and opposite ends thereof being flexibly coupled to each other; and a flexible coupling of the pair of support components. At least one forming
An articulating element for a pipe section, comprising an elastic spacer of the type described above, wherein the support parts (4 , 5, 30, 31, 45, 46) are opposed to each other.
Ends (10, 11) are in the axial direction of the conduit element (2)
Are spaced from each other and their opposite ends (10, 1
If 1) has a locking portion (12, 13, 47, 48)
In addition, the spacers (15, 25, 35, 42, 49) are
Pipe element (2) over the axial spacing of the product ends
It is composed of a substantially hollow cylindrical ring that surrounds
The engaging part (1) matching the corresponding end (10, 11) of the holding part
6, 17), the locking portions (12, 13,
47, 48) and a part of the spacers (15, 25, 35, 42, 49)
Is on the side of the supporting parts (4, 5, 30, 31, 45, 46)
In contact with this side over the surface (8, 9, 51, 52)
Extends, in this part, holds spacers against supporting parts
An articulating element for a pipe section, characterized in that it is provided with a fixing means (18, 50) for fixing . 2. The pipe element (2) is formed airtight.
2. The articulation element for a pipe section according to claim 1, wherein: 3. A support component (4, 5) and a spacer (1).
The structural unit formed from (5, 42) is at least
Tight and at least indirectly close to adjacent piping
Piping for articulated element according to claim 1 or 2, characterized in that it is deposited. 4. A support component (4, 5, 30, 31, 45,
46) is predominantly bell pipe member, according to claim 1, 2 also the neck of the tapering (6,7) is characterized in that it is fitted at least indirectly to the pipe portion corresponding thereto
Is an articulation element for a pipe section described in 3 . 5. The support component (4, 5, 30, 31, 45,
46) have opposite ends (10, 11) oriented substantially radially or have a hook-shaped cross-section,
Claim characterized in that it has a 13,47,4 8) 1
The articulation element for a piping portion according to any one of claims 4 to 4 . 6. A space Sa is characterized in that it is injection molded into the corresponding end portion of the support portion products, any claim 1-5
An articulation element for a pipe section according to claim 1 . 7. A fixing means (18, 50) spring washer blind washer or pipe section for articulated elements described in any one of claims 1 to 6, characterized in that a fixed strip. 8. A spacer (15, 25, 35, 42, 4)
9) is the supporting component (4, 5, 30, 31, 45 , 46)
Its central part (19, 26,
To 34,41,53), at least one recess (23, 24 over the circumference of the conduit element (2), as described in any one of claims 1 to 7, characterized in that it has a 54) pipe Partial articulation element. 9. A spacer (15, 25, 35, 42, 4)
9) The articulated element for a pipe part according to any one of claims 1 to 8, wherein the element ( 9) is reinforced by a woven outer sheath fitted therein. 10. The articulating element according to claim 9 , wherein the sheath is made of a metal wire or an artificial fiber fabric. 11. The central portion (19 and 53) is, if necessary around the periphery of at least one bulge (43, 56)
Piping for articulated elements described in any one of claims 1 to 10, characterized in that in contact with the pipe element (2) by. 12. The central portion (19, 34) is one of the claims 1 to 11, characterized in that in contact with the pipe element (2) by at least one damping cushion around the periphery (20,33) An articulation element for a pipe section according to claim 1 . 13. The articulating element according to claim 12 , wherein the damping cushion (20, 33) is positively fixed and fitted into the central part (19, 34) deep. 14. A damping cushion (28) which fills an intermediate part around at least one of the support parts (4) and the conduit element (2), surrounding the conduit element (2). 14. Any of claims 1 to 13, characterized in that
An articulation element for a pipe section according to claim 1 . 15. The articulating element according to claim 14 , wherein the damping cushion (28) is snapped into the corresponding support part (4) in a deepened condition. 16. The conduit element (2) is wrapped by a braided or mesh hose, the hose ends of which are fixed or connected to both ends of the conduit element (2) if necessary. 11. The method according to claim 1, wherein
An articulation element for a pipe section according to any one of the preceding claims . 17. The articulating element according to claim 16 , wherein the hose is mainly made of metal. 18. The method of claim wherein the bulge of the damping cushion (20) or the central part (53) (43,56,57) is penetrated radially deep conduit element (3) 1-17 An articulation element for a piping section according to any one of the preceding claims. 19. A damping cushion (20, 28, 33).
But claims, characterized by comprising a metal, ceramic, or glass fiber fabric or mesh 10 to 18
An articulation element for a piping section according to any one of the preceding claims. 20. The support component (30, 31) or spacer (25, 53 ) or both have at their free parts at least one penetration (27, 32, 55). 20. An articulating element for a pipe section according to any one of 1, 2, 4 to 19 . 21. Ends (3 , 6, 7 ) of the pipeline elements (2) corresponding to the respective pipe sections and supporting parts ( 4, 5, 5 ) .
30, 31, 45, 46 ) are radially fitted with one another and are attached to the pipe part, or are attached to the ends of the pipe part and are in intimate contact therewith. Item 21. The articulating element for a pipe portion according to any one of Items 1 to 20 . 22. At least one of the pipeline elements (2)
At least one end ring (21,
An articulating element for a pipe section according to any one of claims 1 to 21, characterized in that the joint element ( 39, 40, 44) is mounted. 23. At least one of the end rings (21, 39, 40) extends over its required length in the line element (2) and is radially spaced from the line element (2). Internal protective tube having (22, 37, 38)
23. The articulating element for a piping section according to claim 22 , wherein the component is a component. 24. An inner protective tube (3) starting from two end rings (39, 40) which are radially inserted into one another.
24. The articulating element according to claim 23 , wherein the inner protective tubes are radially spaced from one another at 7, 38). 25. At least one end of a wire mesh hose (29) or a clasp hose is attached to the end (3) of the conduit element (2), this hose being necessary for the conduit element (2). Articulating element for a pipe section according to any one of the preceding claims, characterized in that it extends over a section and has a certain radial spacing with respect to the pipe element (2).